[Paraview] [Non-DoD Source] Re: ParaView GPU support (UNCLASSIFIED)

[Robert Maynard]

Hi Simon,

Currently the VTK-m support that is offered by the ParaView superbuild
doesn't support enabling CUDA. I am in the process of adding this
option to the superbuild and can notify you when this feature has been
merged in. In the short-term you would want to manual modify the vtk-m
CMAKE_ARGS entry in the superbuild to have VTKm_ENABLE_CUDA:BOOL=ON.

On Wed, Sep 20, 2017 at 9:45 AM, Su, Simon M CIV USARMY RDECOM ARL
(US) <simon.m.su.civ at mail.mil> wrote:
> CLASSIFICATION: UNCLASSIFIED
>
> Hi Utkarsh,
>
> is there a sure way to tell if our ParaView VTK-m compilation has the correct
> CUDA support?  For the superbuild process, is there a way to force the
> detection of CUDA library and fail the superbuild process if CUDA library is
> not correctly detected? thank you
>
> thanks
> -simon
>
> -----Original Message-----
> From: Utkarsh Ayachit [mailto:utkarsh.ayachit at kitware.com]
> Sent: Friday, September 15, 2017 12:36 PM
> To: Su, Simon M CIV USARMY RDECOM ARL (US) <simon.m.su.civ at mail.mil>
> Cc: paraview at paraview.org
> Subject: [Non-DoD Source] Re: [Paraview] ParaView GPU support (UNCLASSIFIED)
>
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>
> ----
>
> Simon,
>
> The answer depends on whether you want to ParaView to use GPU for rendering
> alone or also for computation e.g. contours. For former, it's automatic via
> OpenGL. So long as your environment and/or your build is set up such that
> ParaView picks up the OpenGL implementation provided by your GPU drivers,
> you'll get GPU acceleration. For GPU-accelerated algorithms, you have to
> enable VTK-m support at build time and then enable CUDA support for VTM-m.
> Currently, you need create special filters via the VTM-m plugin [1] to use
> accelerated versions of common algorithms like contour. In future, this will
> be automatic, and you will be able to simply use the generic filters.
>
> Hope that helps.
>
> Utkarsh
>
>
> [1] Caution-https://blog.kitware.com/paraview-5-3-0-release-notes/
>
> On Thu, Sep 14, 2017 at 3:42 PM, Su, Simon M CIV USARMY RDECOM ARL
> (US) <simon.m.su.civ at mail.mil> wrote:
>> CLASSIFICATION: UNCLASSIFIED
>>
>>  Hello,
>>
>> How do we configure ParaView to take advantage of available GPU
>> hardware? Do we have to compile with different compile flags? Or
>> ParaView automatically detects availability of GPU hardware and take
>> advantage of it?  Any insight is greatly appreciated
>>
>> Thanks
>> -simon
>>
>>
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